---
title: "BitmapStatisticsProvider.GetSumHistogram Method "
canonical: https://www.graphicsmill.com/docs/gm/M_Aurigma_GraphicsMill_BitmapStatisticsProvider_GetSumHistogram.htm
product: "Graphics Mill"
---

# BitmapStatisticsProvider.GetSumHistogram Method 
 
Calculates and returns a histogram built from the sum of each channel luminosities of the pixel.
 
**Namespace:** [Aurigma.GraphicsMill](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```csharp
public Histogram GetSumHistogram()
```
 
### Return Value
A [Histogram](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Histogram.htm.md) containing sum histogram of this bitmap.
 
## Remarks
 This histogram type is used in Adobe® Photoshop®.
 
## Examples
  
```csharp
var histogram = bitmap.Statistics.GetSumHistogram();
for (int i = 0; i < histogram.Length; i++)
{
    Console.WriteLine(i + ": " + histogram[i]);
}
```
   
## See Also

### Reference

- [BitmapStatisticsProvider Class](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_BitmapStatisticsProvider.htm.md)
- [GetSumHistogram Overload](https://www.graphicsmill.com/docs/gm/O_T_Aurigma_GraphicsMill_BitmapStatisticsProvider_GetSumHistogram.htm.md)
- [Aurigma.GraphicsMill Namespace](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill.htm.md)